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United States Patent | 6,227,225 |
Domingue | May 8, 2001 |
An apparatus for pulling a valve member from a pump. The apparatus comprises a puller stem containing external threads and a bushing having an inner surface, and wherein the puller stem is disposed through the bushing. Also included is a first halve nut containing first internal threads, and a second halve nut also containing internal threads. The first end of the bushing will abut both the first halve nut and the second halve nut. The apparatus further includes a sleeve having an outer portion and an inner portion, and wherein the inner portion has the threaded stem therethrough. The sleeve will engage the first halve nut and the second halve nut. In the preferred embodiment, the apparatus further comprises a first lip attached to the first halve nut and a second lip attached to the second halve nut. The sleeve contains a collar that is concentrically disposed about the sleeve, the collar having an overlapping leg that forms a chamber, and wherein the first and second lip are disposed within the chamber. The apparatus may further comprise a valve puller attached to the puller stem for engaging and pulling a plurality of the valve members from the pump. A method of removing a plurality of valves from a pump is also disclosed.
Inventors: | Domingue; Gregory A. (2954 W. Gloria Switch Rd., Carencro, LA 70520) |
Appl. No.: | 354499 |
Filed: | July 16, 1999 |
Current U.S. Class: | 137/15.18; 29/213.1; 29/221.6; 137/15.17; 137/315.41; 137/327; 417/454 |
Intern'l Class: | F16K 043/00; 315.31; 315.41; 315.42; 327; 328 |
Field of Search: | 137/15.17,15.18,15.22,15.23,15.24,315.17,315.18,315.19,315.2,315.21,315.3 29/213.1,221.6 417/454 |
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5592965 | Jan., 1997 | Rakieski | 29/213. |
5975104 | Nov., 1999 | Wilkins | 137/315. |
Wheatley Operators Manual;P-364 Plunger Pump, pp. 1-10. |